.writing-history-page{max-width:1100px;margin:0 auto;padding:20px}.writing-history-header{justify-content:space-between;align-items:center;margin-bottom:16px;display:flex}.writing-history-header h1{margin:0;font-size:24px}.back-btn{color:#fff;cursor:pointer;background:#2f80ed;border:none;border-radius:8px;padding:8px 14px}.history-empty{background:var(--theme-card-bg);color:var(--theme-text-secondary);border-radius:10px;padding:18px}.history-list{flex-direction:column;gap:16px;display:flex}.history-card{border:1px solid var(--theme-border);background:var(--theme-card-bg);border-radius:12px;padding:14px}.history-card-top{justify-content:space-between;align-items:center;margin-bottom:10px;display:flex}.history-meta{font-weight:600}.history-time{color:var(--theme-text-secondary);font-size:12px}.delete-btn{color:#fff;cursor:pointer;background:#e74c3c;border:none;border-radius:8px;padding:6px 10px}.history-section{margin-top:10px}.history-section h3{margin:0 0 6px;font-size:14px}.history-text-block{white-space:pre-wrap;word-break:break-word;background:var(--theme-bg-secondary);border-radius:8px;margin:0;padding:10px;line-height:1.6}.history-text-block .highlightable-text{display:block}.history-level-trend{border:1px solid var(--theme-border);background:var(--theme-card-bg);border-radius:12px;margin:16px 0;padding:14px}.history-level-trend h2{margin:0 0 10px;font-size:16px}.history-level-grid{grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;display:grid}.history-level-item{border:1px solid var(--theme-border);background:var(--theme-bg-secondary);border-radius:10px;padding:10px}.history-level-main{margin-bottom:4px;font-weight:700}.history-level-sub{color:var(--theme-text-secondary);margin-bottom:4px;font-size:13px}.history-level-time{color:var(--theme-text-secondary);font-size:12px}